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Machine Learning · head to head

IBM SPSS vs QuillBot

IBM SPSS logo

IBM SPSS

Machine Learning

Statistical analysis software for data science

From
Free
Free plan
Yes
Full reviewWebsite
QuillBot logo

QuillBot

AI

AI paraphrasing and writing tool

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: IBM SPSS add-on packages are priced separately from the base subscription, and the promotional 45% discount on them excludes renewals; QuillBot free tier limited to 125-word paraphrases with only 2 modes
  • They diverge on capability: IBM SPSS covers Statistical analysis, QuillBot covers Paraphrasing.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which IBM SPSS and QuillBot actually diverge.

Attributes where IBM SPSS and QuillBot differ
AttributeIBM SPSSQuillBot
Pricing modelsubscriptionfreemium
PlatformsLinux, Mac, WindowsWeb
CategoryMachine LearningAI
Founded19112017

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in IBM SPSS

  • Statistical analysis
  • Predictive modeling
  • Data visualization
  • Survey analysis
  • Decision trees
  • Python
  • R
  • Excel

Only in QuillBot

  • Paraphrasing
  • Grammar checking
  • Summarization
  • Citation generator
  • Browser extension
  • Microsoft Word
  • Google Docs
  • Web support

What people use each for

The jobs each tool is most often brought in to do.

IBM SPSS

  • Statistical testing and regression analysis for academic and market researchnot QuillBot
  • Predictive modelling and forecasting without writing codenot QuillBot

QuillBot

  • ai tools managementnot IBM SPSS
  • Workflow automationnot IBM SPSS
  • Reportingnot IBM SPSS

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

IBM SPSS

  • Add-on packages are priced separately from the base subscription, and the promotional 45% discount on them excludes renewals
  • Subscription cost renews at the then current price at the end of the first year, so the advertised rate applies to the first term only
  • Prices shown are described by IBM as indicative, vary by country and exclude applicable taxes and duties
  • Extended access periods of 12 months or more are handled as tailored pricing rather than a published rate
  • Advanced statistics, custom tables, decision trees and forecasting are separate add-ons rather than part of the base product

QuillBot

  • Free tier limited to 125-word paraphrases with only 2 modes
  • Grammar checking is less robust than Grammaly
  • Writing analytics less advanced than top-tier competitors

Pricing, plan by plan

IBM SPSS

Free
  • TrialFree
    • 14-day trial
    • Full features
  • Base$99/month
    • Core statistics
    • Data management

QuillBot

Free
  • FreeFree
    • 125 words paraphrase
    • 3 modes
  • Premium$9.95/month
    • Unlimited words
    • All modes
    • Plagiarism checker

Which should you pick?

Choose IBM SPSS if

  • You need statistical analysis.
  • You want to start without paying.
  • You work on Linux, Mac, Windows.
  • You also want predictive modeling.
IBM SPSS review

Choose QuillBot if

  • You need paraphrasing.
  • You want to start without paying.
  • You also want grammar checking.
QuillBot review

Questions people ask

Is IBM SPSS or QuillBot better?
Neither clearly leads. IBM SPSS starts at Free and QuillBot at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, IBM SPSS or QuillBot?
IBM SPSS starts at Free and QuillBot at Free.
Does IBM SPSS or QuillBot run on more platforms?
IBM SPSS runs on Linux, Mac, Windows. QuillBot runs on Web.
Can I use IBM SPSS for free?
Both have a free tier, so you can try either at no cost before committing.
What is IBM SPSS best used for?
IBM SPSS is most often used for statistical testing and regression analysis for academic and market research, predictive modelling and forecasting without writing code. Of those, statistical testing and regression analysis for academic and market research and predictive modelling and forecasting without writing code are not what QuillBot is typically brought in for.
What can IBM SPSS do that QuillBot cannot?
IBM SPSS covers Statistical analysis, Predictive modeling, Data visualization, Survey analysis. QuillBot covers Paraphrasing, Grammar checking, Summarization, Citation generator.

Answered from the vendors’ own pages

QuillBot: What is QuillBot pricing?

QuillBot uses a freemium model. Premium costs $19.95/month or $8.33/month ($100/year) when billed annually. The free tier provides basic paraphrasing with 125-word limit and 2 modes.

Source
QuillBot: What are QuillBot's paraphrasing modes?

QuillBot offers 10 specialized paraphrasing modes including Standard, Fluency, Creative, and the newly added Boomer Mode, providing unmatched flexibility at this price point.

Source
QuillBot: What features does the free plan include?

QuillBot's free plan includes paraphrasing (125-word limit, 2 modes), grammar checking with limited daily checks, summarizing (1,200-word limit), and basic translation.

Source
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